LOS ANGELES, Aug 10: Rock group Kings of Leon are getting less serious with age, as the band prepares to bring “young and fun” new music yesterday to their fans across the world in a quirky collaboration with comedian Fred Armisen. Kings of Leon, formed by Followill brothers Caleb, Nathan, Jared and cousin Matthew, are marking a decade in the music industry since their debut album “Youth & Young Manhood” was released in 2003. (agencies)